CN1109937C - Developer liquid supply device of wet type electrographic printer - Google Patents
Developer liquid supply device of wet type electrographic printer Download PDFInfo
- Publication number
- CN1109937C CN1109937C CN98115929A CN98115929A CN1109937C CN 1109937 C CN1109937 C CN 1109937C CN 98115929 A CN98115929 A CN 98115929A CN 98115929 A CN98115929 A CN 98115929A CN 1109937 C CN1109937 C CN 1109937C
- Authority
- CN
- China
- Prior art keywords
- developer solution
- developer
- storage tank
- supply device
- carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
- G03G15/104—Preparing, mixing, transporting or dispensing developer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Wet Developing In Electrophotography (AREA)
Abstract
A developer liquid supply device of a wet type electrographic printer, comprising: a reservoir, for storing developer liquid made by mixing a liquid carrier and ink, and for supplying the developer liquid to a developing unit through a developer liquid supply passage; a processing tank for storing developer liquid drained from the reservoir through a developer liquid drain passage; an ink cartridge installed inside the processing tank for supplying the ink to the reservoir through an ink supply passage; and a carrier cartridge for supplying the liquid carrier to the reservoir through a carrier supply passage.
Description
The present invention relates to Wet-type electric-photographic printing machine, relate more specifically to the developer liquid supply device of Wet-type electric-photographic printing machine, wherein can control the concentration and the liquid level of developer.
Usually, Wet-type electric-photographic printing machine will be by the latent electrostatic image developing that forms on such as sensitization band one class sensitization medium with the predetermined color developer solution, and the image after will developing is sent on the paper, thereby prints off required image.Dispose in the Wet-type electric-photographic printing machine: developing cell, in order on the sensitization medium, to supply with developer solution; And developer liquid supply device, in order to supply with the developer solution of predetermined concentration continuously to developing cell.Developer solution is the intermixture that concentrates China ink, comprising powdery toner and liquid carrier.Toner density is about the 2-4 percentage by weight.The concentration of following developer solution also is that the weight percent with toner recently defines.
Developer liquid supply device disposes: store the print cartridge that concentrates China ink; The carrier box of storing liquid carrier; And the storage tank that stores developer solution, developer solution is to concentrate China ink and the intermixture of liquid carrier by predetermined ratio.In addition, stirrer is housed also in print cartridge and storage tank, so that be contained in the unlikely precipitation of toner in the liquid of storage.
In having the developing apparatus of said structure, owing to the development liquid measure that is stored in the storage tank reduces along with the consumption of each electrostatic latent image that develops on the sensitization medium, must continuously concentrate China ink and liquid carrier, to keep the developer solution constant density to the storage tank supply.In addition, also must keep being stored in the liquid level of developer solution in the storage tank on certain height.
And toner and liquid carrier consumption separately are also with different variation of printing of image.That is to say, when printing simple or little image, the consumption of liquid carrier just than toner for many, and when the printing complicated image, the toner consumption liquid carrier that just compares is many.Therefore, in order to keep the predetermined concentration of developer solution, be necessary suitably to supply with toner and developer solution to storage tank according to toner and liquid carrier consumption separately.
Yet in above-mentioned developer liquid supply device, the concentration of developer solution and liquid level can not successfully be regulated simultaneously.That is to say that in order to remain on the constant density of developer solution in the storage tank, when a large amount of liquid carriers feeds to storage tank, the liquid level of developer solution will become and be unsuitable for printing, and perhaps when regulating the developer solution liquid level, just may make developer solution lose correct concentration.
In order to address the above problem, an order of the present invention just provides a kind of developer liquid supply device of Wet-type electric-photographic printing machine, and this device has improved structure, makes it suitably the concentration and the liquid level of developer solution to be regulated.
Another object of the present invention provides a kind of developer liquid supply device, and it can reduce the installing space of element, and utilizes unnecessary space.
In order to achieve the above object, the developer liquid supply device of the Wet-type electric-photographic printing machine that provides comprises: storage tank, in order to storing the developer solution that mixes by liquid carrier and China ink, and supply with developer solution to developing cell by the developer solution feed path; Print cartridge is in order to supply with China ink by black feed path to storage tank; And carrier box, in order to supply with liquid carrier by the carrier feed path to storage tank, wherein, this device comprises a treatment box, and print cartridge wherein is housed, this case is in order to store by storage tank by the next developer solution of developer solution discharge-channel discharging.
In addition, in this device, print cartridge is preferably contractile.For this reason, the sidewall of print cartridge should form folding.
According to another embodiment of the present invention, this device also further comprises: the concentration sensor that solution level in the storage tank is detected; When the solution level that is detected by concentration sensor was not the concentration of being scheduled to, the developer solution in the storage tank was just arranged to treatment box.
In addition, this device also comprises: the valve of opening and closing developer solution discharge-channel and developer solution feed path optionally; And the concentration sensor of solution level in the detection storage tank; And when not being the concentration of being scheduled to by the detected solution level of concentration sensor, just by valve the developer solution feed path is closed, and the developer solution discharge-channel is opened.
According to a further aspect in the invention, this device also comprises recirculation line, in order to developer solution is fed to storage tank from treatment box.
In addition, this device also further comprises: opening and closing China inks feed path optionally, the valve of carrier feed path and recirculation line; And the concentration sensor of solution level in the detection storage tank; Wherein valve optionally opens or cuts out black feed path, and carrier feed path and recirculation line feed to the China ink of storage tank, the total amount of liquid carrier and developer solution with control.
Above-mentioned purpose of the present invention and advantage will be more clear to the detailed briefing of preferred embodiment by consulting accompanying drawing, wherein:
Fig. 1 is the synoptic diagram of the developer liquid supply device of explanation Wet-type electric-photographic printing machine according to an embodiment of the invention; And
Fig. 2 is the synoptic diagram of the developer liquid supply device of explanation Wet-type electric-photographic printing machine according to another embodiment of the invention.
What Fig. 1 showed is the developer liquid supply device of Wet-type electric-photographic printing machine according to an embodiment of the invention.
Consult Fig. 1, contain liquid carrier in the carrier box 10, contain in the print cartridge 20 and concentrate China ink.Carrier box 10 can be changed with new box with print cartridge 20 after using up.Carrier box 10 and print cartridge 20 respectively by carrier feed path 11 and black feed path 21 with link up such as first valve 53 of electromagnetism two-position valve.By optionally opening or close carrier feed path 11 and black feed path 21, under the driving force effect of first pump 55, first valve 53 feeds to storage tank 40 to China ink and liquid carrier through China ink/carrier feed path 54.
Liquid level sensor 42 and concentration sensor 44 are installed, in order to liquid level and the concentration that detects developer solution respectively in storage tank 40.In addition, under the driving force effect of second pump 32, storage tank 40 feeds to developing cell 30 to the developer solution of being made up of China ink and liquid carrier through developer solution feed path 34.The latent electrostatic image developing that developing cell 30 usefulness will form on sensitization band 70 from the developer solution of storage tank 40.
Second valve 33 is installed at the middle part of developer solution feed path 34, and for example it also is an electromagnetism two-position valve.Second valve 33 optionally opens or cuts out developer solution feed path 34 and developer solution discharge-channel 35, leading to developing cell 30 or treatment box 50 respectively by developer solution feed path 34 or developer solution discharge-channel 35 from the developer solution in the storage tank 40.
Among Fig. 1, label 60 expressions are in order to reclaim the drying nest attached to the liquid carrier on the electrostatic latent image of sensitization band 70.The liquid carrier that reclaims turns back in the carrier box 10 by recovery tube 61.
According to the present invention, print cartridge 20 is installed in treatment box 50 inside.Fold 85 because print cartridge 20 is made on print cartridge 20 sidewalls, form bellows form, the volume of print cartridge 20 can change.That is to say, when China ink pumps, or do the time spent by the pressure of the developer solution that pumps into treatment box 50 from print cartridge 20, under consequent inner vacuum effect, print cartridge 20 shrinks.Print cartridge 20 is not limited to this example, can adopt any collapsible container, and such as the deflection bag, when wherein pump went out, it can shrink.
Now, introduce the operation of developer liquid supply device according to present embodiment with said structure.
Work as power connection, the starting printer, first valve 53 is optionally opened black feed path 21 and carrier feed path 11, with China ink and liquid carrier by feeding to storage tank 40 in print cartridge 20 and the carrier box 10.The China ink of supplying with mixes mutually with liquid carrier, forms the developer solution of the predetermined concentration and the liquid level that requires.
Meanwhile, when the pump in the print cartridge 20 went out, print cartridge 20 just shrank, and the free space in treatment box 50 just increases pro rata with the retraction volume of print cartridge like this.
So the developer solution in storage tank 40 feeds to developing cell by developer solution feed path 34 under the driving force effect of second pump 32.Simultaneously, developer solution discharge-channel 35 is kept closing by the effect of second valve 33.Like this, the electrostatic latent image that forms on sensitization band 70 is just by the developing liquid developing of supplying with.Simultaneously, the unnecessary developer solution of supplying with sensitization band 70 is removed such as scraping slurry roller (not drawing among the figure), and is turned back in the storage tank 40 by passage 31 just by retracting device.
When printing operation,, different with the solution level that passes through 34 supplies of developer solution feed path by the solution level that passage 31 reclaims when not simultaneously according to above-mentioned printing condition of work China ink and carrier consumption separately and standard value.Thereby the solution level in storage tank 40 changes.In this case, concentration sensor 44 detects the unusual concentration of developer solution.And send signal to controller (among the figure draw).The controller response signal stops to print operation, operates second valve 33 simultaneously, closes developer solution feed path 34, opens developer solution discharge-channel 35.Thereby the developer solution in storage tank 40 is just arranged to treatment box 50 under the driving force effect of second pump 32.Developer solution in the storage tank 40 enters treatment box 50, makes the storage tank vacating space, and new China ink and carrier liquid just can be supplied with into.Simultaneously, the discharge capacity of developer solution can suitably be regulated.
So China ink and liquid carrier are supplied with in 53 operations of first valve in storage tank 40, and are mixed into the developer solution of correct concentration.
According to the present invention, because part developer solution in storage tank 40 enters treatment box 50, the concentration of developer solution and liquid level are with regard to Be Controlled easily.
In addition, when printing was operated, after the China ink in the print cartridge 20 was discharged, the volume of print cartridge 20 just reduced, and after developer solution carried out treatment box 50, the free space of treatment box 50 also reduced.Consider these situations, contractile print cartridge is installed in treatment box 50, just can utilize redundant space according to the contraction formation of print cartridge 20.Therefore, space availability ratio has improved, and the volume of whole device is also reduced.Here, the capacity of treatment box 50 is decided from the black total amount of print cartridge with row by the total amount from the developer solution of storage tank 40.
Fig. 2 has shown according to the present invention the structure of another embodiment of developer liquid supply device.Same label represent with Fig. 1 in those have the like of said function.
According to present embodiment, treatment box 50 is communicated with such as the electromagnetism three-position valve with the 3rd valve 53a by recirculation line 51.Therefore the developer solution in treatment box 50 just can feed to storage tank 40 by recirculation line 51 and the 3rd valve 53a, can utilize again.
Concentration sensor 56 is installed in treatment box 50, detects the concentration of developer solution in treatment box 50, supply with the amount of the developer solution of storage tank 40 with decision.
According to present embodiment, in the operation of developer liquid supply device, when the developer solution of the scheduled volume that discharges from storage tank 40 was stored in the treatment box 50, the concentration of developer solution was measured by concentration sensor 56, and the concentration information signal is sent to controller (drawing among the figure).
So, controller drives the 3rd valve 53a, and open carrier feed path 11 selectively, black feed path 21, and recirculation line 51 feed to developer solution and liquid carrier and China ink in the storage tank 40 from treatment box 50.In this case, controller is according to the quantity delivered of the concentration information control China ink that transmits the developer solution that comes with liquid carrier, to remain on the correct concentration and the liquid level of the developer solution that forms in the storage tank 40.
In the present embodiment, the developer solution in treatment box 50 can feed to storage tank 40, can utilize again.Simultaneously, the redundant space that forms in treatment box 50 equals because developer solution discharges the free space that causes and because print cartridge 20 shrinks the free space sum that forms.
According to as mentioned above of the present invention, provide independent treatment box to make developer solution to arrange to treatment box, thereby help the control of the concentration and the liquid level of developer solution in storage tank from storage tank.In addition, the developer solution in treatment box can utilize once more, and without any the deviation of the concentration of undesirable developer solution.In addition, print cartridge is installed in treatment box, space availability ratio is improved, the volume of whole device is also reduced.
In this manual, disclose developer liquid supply device and be used for a developing cell.But same developer liquid supply device can be used for having one group of printer corresponding to the developing cell of yellow, magenta, cyanic colours, black or the like different colours.
Claims (5)
1. the developer liquid supply device of a Wet-type electric-photographic printing machine comprises: storage tank (40) in order to storing the developer solution that is mixed and made into by liquid carrier and China ink, and feeds to developing cell (30) by developer solution feed path (34) with developer solution; Print cartridge (20) is in order to supply with storage tank (40) by black feed path (21) with China ink; And carrier box (10), in order to liquid carrier being supplied with storage tank (40) by carrier feed path (11),
It is characterized in that this device comprises a treatment box (50), print cartridge (20) wherein is installed, this case is in order to store the developer solution of discharging by developer solution discharge-channel (35) from storage tank (40); This developer liquid supply device also comprises: in order to detect the concentration sensor (44) of solution level in the storage tank (40); When the solution level that is detected by concentration sensor was not predetermined concentration, the developer solution in storage tank (40) just was discharged in the treatment box (50).
2. the developer liquid supply device of Wet-type electric-photographic printing machine according to claim 1, wherein print cartridge (20) is contractile.
3. the developer liquid supply device of Wet-type electric-photographic printing machine according to claim 2 wherein forms folding at print cartridge (20) sidewall.
4. the developer liquid supply device of Wet-type electric-photographic printing machine according to claim 2 wherein further comprises:
In order to the valve (33) of opening and closing developer solution discharge-channel and developer solution feed path selectively; And
Wherein, when the solution level that is detected by concentration sensor is not the concentration of being scheduled to, by valve (33) the developer solution feed path is closed, the developer solution discharge-channel is opened.
5. the developer liquid supply device of Wet-type electric-photographic printing machine according to claim 2 wherein also comprises the recirculation line (51) that developer solution is fed to storage tank by treatment box.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR68314/97 | 1997-12-12 | ||
| KR1019970068314A KR100253143B1 (en) | 1997-12-12 | 1997-12-12 | Developer supplying apparatus of wet electrographic printer &tank/cartridge assembly |
| KR68314/1997 | 1997-12-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1219692A CN1219692A (en) | 1999-06-16 |
| CN1109937C true CN1109937C (en) | 2003-05-28 |
Family
ID=19527196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98115929A Expired - Fee Related CN1109937C (en) | 1997-12-12 | 1998-07-07 | Developer liquid supply device of wet type electrographic printer |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5930555A (en) |
| EP (1) | EP0923005B1 (en) |
| JP (1) | JP3040092B2 (en) |
| KR (1) | KR100253143B1 (en) |
| CN (1) | CN1109937C (en) |
| DE (1) | DE69822415T2 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100252098B1 (en) * | 1997-12-12 | 2000-04-15 | 윤종용 | Apparatus for supplying a developer for liquid printer |
| US6088560A (en) * | 1998-07-07 | 2000-07-11 | Imation Corp. | Liquid ink replenishment system for liquid electrographic imaging devices |
| KR100374592B1 (en) * | 1999-11-24 | 2003-03-03 | 삼성전자주식회사 | Liquid level detector and liquid level detecting apparatus of image printing system |
| JP2001201943A (en) * | 2000-01-17 | 2001-07-27 | Nec Niigata Ltd | Developer solution adjusting device for electrostatic and wet type electrophotographic printer |
| US7163283B2 (en) * | 2004-10-21 | 2007-01-16 | Eastman Kodak Company | Reuse of solvent startup/shutdown fluid for concentration control |
| JP2006251669A (en) * | 2005-03-14 | 2006-09-21 | Seiko Epson Corp | Image forming apparatus |
| JP4798339B2 (en) * | 2005-03-01 | 2011-10-19 | セイコーエプソン株式会社 | Liquid toner concentration adjusting apparatus and image forming apparatus |
| JP4947082B2 (en) * | 2009-03-31 | 2012-06-06 | ブラザー工業株式会社 | Image forming apparatus |
| WO2011035811A1 (en) * | 2009-09-25 | 2011-03-31 | Hewlett-Packard Indigo B.V. | Ink container |
| CN102419518B (en) * | 2010-09-27 | 2013-03-27 | 北大方正集团有限公司 | Developing machine, developing solution feeding system and method thereof |
| CN103376804B (en) * | 2012-04-20 | 2015-11-04 | 北大方正集团有限公司 | A kind of device controlling fluid supply material and add |
| JP2017156575A (en) * | 2016-03-02 | 2017-09-07 | 富士ゼロックス株式会社 | Image forming apparatus |
| WO2020040759A1 (en) | 2018-08-22 | 2020-02-27 | Hewlett-Packard Development Company, L.P. | Print apparatuses using reusable print agent containers |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3789794A (en) * | 1971-12-27 | 1974-02-05 | Savin Business Machines Corp | Apparatus for developing electrostatic images |
| DE2221974C3 (en) * | 1972-05-05 | 1978-08-17 | Hoechst Ag, 6000 Frankfurt | Storage device for an electrophotographic copier |
| GB1455885A (en) * | 1973-12-21 | 1976-11-17 | Xerox Corp | Liquid dispensing |
| JPH0391784A (en) * | 1989-09-04 | 1991-04-17 | Matsushita Graphic Commun Syst Inc | Liquid developing device and storage unit |
| US5461466A (en) * | 1994-05-02 | 1995-10-24 | Hewlett-Packard Company | Dripless seal for a liquid toner cartridge |
| JPH09311557A (en) * | 1996-05-16 | 1997-12-02 | Ricoh Co Ltd | Wet developing device |
-
1997
- 1997-12-12 KR KR1019970068314A patent/KR100253143B1/en not_active IP Right Cessation
-
1998
- 1998-06-18 JP JP10170736A patent/JP3040092B2/en not_active Expired - Fee Related
- 1998-07-03 EP EP98305302A patent/EP0923005B1/en not_active Expired - Lifetime
- 1998-07-03 DE DE1998622415 patent/DE69822415T2/en not_active Expired - Fee Related
- 1998-07-07 CN CN98115929A patent/CN1109937C/en not_active Expired - Fee Related
- 1998-07-30 US US09/124,765 patent/US5930555A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11184257A (en) | 1999-07-09 |
| JP3040092B2 (en) | 2000-05-08 |
| KR19990049377A (en) | 1999-07-05 |
| EP0923005B1 (en) | 2004-03-17 |
| EP0923005A2 (en) | 1999-06-16 |
| DE69822415D1 (en) | 2004-04-22 |
| US5930555A (en) | 1999-07-27 |
| EP0923005A3 (en) | 2001-03-28 |
| CN1219692A (en) | 1999-06-16 |
| DE69822415T2 (en) | 2005-01-13 |
| KR100253143B1 (en) | 2000-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030528 |